20545659

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{223}}^1\times {\mathrm{353}}^1$

素因数の和:611

約数の個数: 24

約数和(自身を含む): 30925440

約数和(自身を除く): 10379781

約数列:

[1, 3, 9, 29, 87, 223, 261, 353, 669, 1059, 2007, 3177, 6467, 10237, 19401, 30711, 58203, 78719, 92133, 236157, 708471, 2282851, 6848553, 20545659]

約数ペア:

[(1, 20545659), (3, 6848553), (9, 2282851), (29, 708471), (87, 236157), (223, 92133), (261, 78719), (353, 58203), (669, 30711), (1059, 19401), (2007, 10237), (3177, 6467)]